25GB Blu-ray vs. 50GB Blu-ray? - Blu-ray Forum

jakesully · 08-13-2007, 06:50 PM

can someone please tell why why new releases are in 50GB discs???!! and what are the differences?
so is the quality way better?
thx

Musashi · 08-13-2007, 06:59 PM

More data means higher quality/more time, simply put.

shido · 08-13-2007, 07:00 PM

Quote:

Originally Posted by jakesully

can someone please tell why why new releases are in 50GB discs???!! and what are the differences?
so is the quality way better?
thx

It's a bigger disc - twice as big to be exact. So there's more room for better video compression and lossless/uncompressed audio.

takezo · 08-13-2007, 07:19 PM

11010100

the number at the top is a series of 8 binary digits we IT people call a byte. One Giga Byte is 1 billion of these binary sequences. A blu-ray disc can hold up to 50 billion of these binary sequences.

Imagine that each sequence is instructions on how to draw an image, i more steps you have in the instructions the closer the image will look to the orginal source.

Basicaly since the 50GB disk has more data capacity the more instructions it can have for the player to process resulting in much clearer picture quality.

A flawless 1080p video is 2 million pixels 24 times every second. Thats 48 million pixels every second. This equates to 350 trillion pixels total in a 2 hour movie. Even 50GB will not be enough space if it were raw uncompressed data. However the less compression you use the better.

50GB Blu-ray gives it a 67% advantage over HD-DVD which largest disc is 30GB.

EricJ · 08-13-2007, 07:55 PM

Also, one would guess they're double-layer as opposed to single-layer, which made DVD's more interesting to begin with.

jorg · 08-13-2007, 08:01 PM

stop making two threads

08-13-2007, 06:50 PM	#1
jakesully Member Member since:Aug 2007	25GB Blu-ray vs. 50GB Blu-ray? can someone please tell why why new releases are in 50GB discs???!! and what are the differences? so is the quality way better? thx

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08-13-2007, 06:59 PM	#2
Musashi Blu-ray Ninja Top contributor Member since:Jan 2007 Location:Manchester, CT Home Theater Gallery:5 4K collection:25 Blu-ray collection:337 Blu-ray reviews: 1	More data means higher quality/more time, simply put.

08-13-2007, 07:19 PM	#4
takezo Active Member Member since:Aug 2006	11010100 the number at the top is a series of 8 binary digits we IT people call a byte. One Giga Byte is 1 billion of these binary sequences. A blu-ray disc can hold up to 50 billion of these binary sequences. Imagine that each sequence is instructions on how to draw an image, i more steps you have in the instructions the closer the image will look to the orginal source. Basicaly since the 50GB disk has more data capacity the more instructions it can have for the player to process resulting in much clearer picture quality. A flawless 1080p video is 2 million pixels 24 times every second. Thats 48 million pixels every second. This equates to 350 trillion pixels total in a 2 hour movie. Even 50GB will not be enough space if it were raw uncompressed data. However the less compression you use the better. 50GB Blu-ray gives it a 67% advantage over HD-DVD which largest disc is 30GB.

08-13-2007, 07:55 PM	#5
EricJ Banned Member since:Jul 2007 Location:The Paradise of New England Blu-ray collection:6	Also, one would guess they're double-layer as opposed to single-layer, which made DVD's more interesting to begin with.

08-13-2007, 08:01 PM	#6
jorg Power Member Member since:Dec 2006 Location:Ontario, Canada Home Theater Gallery:2	stop making two threads

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